太原理工大学学报2025，Vol.56Issue(3)：436-444,9.DOI:10.16355/j.tyut.1007-9432.20230710
面向边缘计算的无证书排序密文检索方案
Edge Computing Oriented Certificateless Sorting Ciphertext Retrieval Scheme
摘要
Abstract
Absrtact:[Purposes]In order to ensure the privacy and retrievability of cloud data,ciphertext re-trieval technology has emerged.However,cloud computing is no longer able to meet the current data processing requirements.To solve the problems of low efficiency and low security level in cloud com-puting ciphertext retrieval schemes,an efficient certificateless ciphertext retrieval scheme based on edge computing is proposed.[Methods]First,edge nodes were introduced to achieve ciphertext re-trieval,for effectively sharing the computational cost of cloud computing while reducing the risk of leakage in data transmission paths.Second,by referencing the certificateless public key cryptosystem,the user's public and private keys were generated and managed by themselves,which solved the prob-lems of key escrow and certificate management in traditional schemes and improved the security of the system.Finally,by blocking the index and trapdoor to filter out keywords unrelated to the query,the secure KNN(k-nearest neighbor)algorithm was used to calculate document similarity,which im-proved retrieval efficiency and accuracy.At the same time,sorted ciphertext retrieval was achieved.[Results]The experimental results show that the proposed scheme is secure under known background threat models and has high efficiency.关键词
边缘计算/隐私保护/密文检索/无证书/排序Key words
edge computing/privacy protection/ciphertext retrieval/certificatless/sort分类
信息技术与安全科学引用本文复制引用
段婕,顾玮,张淑娟,宫鑫..面向边缘计算的无证书排序密文检索方案[J].太原理工大学学报,2025,56(3):436-444,9.基金项目
国网山西省电力公司科技项目(52051C220001) （52051C220001）
